login: Bump auto-enrollment constants.

This increases the auto-enrollment constants to start with a larger
initial bucket size and also bumps the limits to allow for future
growth.

BUG=chromium:617930
TEST=Verified that auto-enrollment checks in Chrome still work with the
new contants for good measure.

Change-Id: Ie27890a906a31d17ddd59082bfb266fc41283812
Previous-Reviewed-on: https://chromium-review.googlesource.com/350310
(cherry picked from commit 495a848b543efc33c03affa919210964fb775bd0)
Reviewed-on: https://chromium-review.googlesource.com/352000
Reviewed-by: Dan Erat <derat@chromium.org>
Commit-Queue: Igor Covganet <igorcov@chromium.org>
Tested-by: Igor Covganet <igorcov@chromium.org>
1 file changed